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Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame.
this is confusing, explain more clearly, geez is dat too much to ask?
Waldo Mayer
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In physical science not biology what is the difference between a closed system and an open system?
A closed system does not allow for energy or matter to enter or leave the system.
What is the system in which no matter is allowed to enter or leave?
A system in which neither matter nor enery enters or leaves is a closed system.
What is the air inlet of Bunsen burner?
As you are aware, the flammable gas goes into a Bunsen Burner through the rubber tube. To burn the gas, you need oxygen, in air. By controlling the amont of air available, you vary the colour, temperature and ferocity of the flame. Te air inlet is a hole at the base of the tower. It has a collar around it which can be rotated to vary the amont of air available. If the collar is closed, no extra air is added and the only available oxygen comes from the air around the flame. With so little oxygen, the gas doesn't burn to completion and carbon soot is produced. This makes the flame yellow and clearly visible (for safety sake) but not as hot. If the collar is fully open, air is pulled in through the inlet and mixed with the gas before burning. This provdes more oxygen, a hotter flame and more complete combustion to carbon dioxide and water. This flame is blue with a roaring sound and can be almost invisible to the casual abserver. In practice, always light a Bunsen Burner with the collar closed so that you can see the yellow flame but open the collar to give ablue flame when heating. This avoids coating everything in soot. When you have finished, close the collar again to leave the flame clearly visible and yellow for everyone to see.
Why should you turn off lights in rooms?
yes if you leave it on your bill will go up by the second
How is salt extracted from seawater?
If you leave the salt water in an evaporating basin the water will evaporate leaving you with big crystals of salt. To speed up the evaporating reaction you can heat it over a Bunsen Burner but your crystals of salt will the smaller.
When you are not using a Bunsen burner but wish to leave the flame on you should always leave the air hole closed why?
It is less hot
Why should you leave a Bunsen burner with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
Why should you leave the Bunsen burner with the air hole closed?
Because if the air hole was wide open, the flame will be blue, which is going to be really hot so you have to leave it at a safety yellow flame which is when the air hole is closed when lit. It could be dangerous to leave a Bunsen burner on a blue flame. this is confusing, explain more clearly, geez is dat too much to ask?
How do you get out of a closed Facebook group?
There should be something on the right saying 'LEAVE THIS GROUP'. Click on that, and you can leave.
Why should the yellow Bunsen burner flame not be used for heating?
because it isnt hot enough and will leave soot on the bottom of the thing you are heating
Why do you need to know witch flame is nosier on a Bunsen burner?
so when you leave the room the bunsen is in the nosier flame (roaring flame)tells the other people that the bunsen is on and they wouldn't burn themselfs
Should doors be left open or closed when room not in use?
normally closed but if u dont want to lock your self out then leave it open
What can you use a safety flame for?
When you have to leave your Bunsen burner but need to keep it alight.
Why should you turn a Bunsen burner to a yellow flame if you need to leave it?
The yellow flame is more visible - making it easier for others to see. It's also a colder flame than the blue conical one.
Should you leave windows closed when a car is sitting in extreme heat?
no you shouldn't hope this helps when you're cars n extreme heat
Should people be allowed to use cell phones in a movie theater?
I get disturbed when the light of a phone comes on or the sound happens. When my phone vibrates in my pocket and my boys are on the road I leave the theater and answer it when I get to a lighted place. The theater owner/operator should have the option to make this call.
What do you put on top of a Bunsen burner that evaporates water to leave salt?
You put a tripod then a gauze on top.Then on top of the guaze you put a beaker of salt water.That will then evaporate to leave salt.
